Carving-machine.



I. SCHMITT & 0.1.. RUEIIS wim' 171 J. SCHMITT & o. L. RUEHS.

GABVING MACHINE. APPLIOATION FILED APB. 15. 1905.

Patented Jan. 19, 1909.

' ssHEETs-SHBET Winamax: v liwwzns, @aw/fm# Y ff f 04M J. SCHMITT E G. L. RUBHS.

GARVING MACHINE. APrLIoATIoN FILED APB. 15'. 1905.

91 0,422.. Patented Jan. 19, 1909.

3 SHEETS-SHEET 3.

e Z fdl UNITED sTATEs PATENT oEEroE.

JOSEPH SCHMITT AND CHARLES L; RUEHS, OF CHICAGO, ILLINOIS, ASSIGNORS OF ONE-THIRD TO CHARLES SCHLEYER, OF CHICAGO, ILLINOIS.

CARVING-MACHIN E.

Specication of Letters Patent.

Patented Jan. 19, 1909.

' Application mea April 15, 1905. seria1N0.255,e99.

To all whom it may concern:

Be it known that we, JOSEPH SCHMITT and CHARLES L. RUEHs, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Carving-Machines, of which the following is a speciiication.

This invention relates to improvements in carving machines of that class in which a number of pieces are simultaneously carved from a single pattern.

rihe especial object of our improvements is to produce a machine that can be economically built, and will be easy to operate and not liable to get out of order.

' A further object is to provide a simple universal movement for such machines so that the cutting tools may be freely and accurately moved in practically any vertical or horizontal plane.

A still further object is to provide a Workholding table supported on springs which are capable of adjustment so as to perfectly balance the weight of the different models and pieces of Wood being carved.

A further object is to construct a carving machine that can be hung fromy a wall instead of supported on the floor, thus saving space and avoiding much of the vibration which interferes with the Work of such machines as generally constructed.

Our machine possesses other advantages of construction and operation which will be readily apparent to those skilled in the art and need not be herein speciiically referred to.

Referring to the accompanying drawing Figure 1 is a front elevation of our improved machine; Fig. 2 is a top plan view of said machine; Fig. 3 is a side elevation of the machine; Fig. 4 is a detail in cross section on an enlarged scale showing anti-frictional bearings used in our machine; Fig. 5 is an elevational view on an enlarged scale showing the anti-frictional bearings employed in our machine, and a portion of the work frame; Fig. is a cross section on the line -x Fig. 1; Fig. 7 is a side elevation of the tracer carrying arm of the tool-frame; Figs. 8 and 9 are details on an enlarged scale of the spring supporting element, and Fig. 10 is a view on an enlarged scale partly in elevation and partly in section of the roller bearings employed in our machine.

ln its general construction, our machine involves a bed adapted to be secured to a wall, and to furnish a support for a frame on which are mounted the tracing and cutting tools and the means for driving same, and said frame is vertically adjustable on its support; said machine also includes brackets on which are mounted two sets of guide rails, one set of which is adapted to freely slide transversely on the other. Slidably mounted on one set of guide rails is a frame which carries the pattern and work pieces, and said frame is yieldingly and rockingly supported.

While we have shown a two-cutter machine it will be apparent that the principles of construction adopted in our machine are applicable to a machine having any number of cutters.

Referring to the drawings in detail, A represents a rectangular frame made up of suitable vertical and horizontal plates bolted together and same' form the supporting bed of our machine, which is adapted to be bolted to a wall. At the top of the bed, near its corners, and on extensions a2, are bolted blocks al, al, in which a shaft a3 is journaled. On the ends of the shaft are fixed handwheels 0,5 by which it may be turned; and bevel-pinions a4, a4, are secured on the shaft near the bearing blocks al, a1. In horizontal projections from the frame extensions a2, are j ournaled vertical screw shafts a on the upper ends of which are fixed beveled pinions a7, a7, which mesh with the pinions a4, a4. Below their journals, the shafts a are shouldered and threaded and engage threaded openings in lugs h1 which project from the face of the tool-carrying frame to be described. VThe turning of the hand-wheels a5, will adjust the tool carrying frame vertically, through the engagement of pinions a4, a7, and the shafts as, with the threaded lugs h1.

The tool-carrying frame is composed of two brackets H, H, which extend at rightangles from the upper part of the bed of the machine, and of upper and lower rear crossbars h2, h2, and lower front cross-bars h3 all suitably secured together to form a rigid structure. From the outer edge of each of the brackets H projects a ilange h5 in which vertical slots h6 are formed. Slidably fitting the slots h are bolts hs engagements with openings in the vertical side members of the machine bed, said bolts serving to limit the tool carrying frame in its vertical adjustments. On the rear side of which have threaded 1,

each of the vertical members h5 projects a tongue 7.10 which lSlidably engages a groove u8 in the outer face of the vertical members of the bed A, said tongues and grooves serving as vertical guides and slideways'forthe tool carrying frame. (See Fig. 6.) At a point half-way between the brackets H, H, an arm h4 is bolted to, and extends at right angles from, the bars h2, and same serves as a support for the tracer and the means for driving saine and the main drive-pulleys for the carving tools. ln the arm h4 is vertically journaled a shaft lc on the upper portion of which is fixed a main drive pulley 7c3 which may be belted to and driven by any suitable power. The shaft 7c extends through a cut out portion hf of the arm and at this point has iixed thereon two pulleys k1 and a smaller pulley k2 all grooved to receive round belts lr6 and k7 respectively. ln the outer end of the arm h4 is j ournaled a suitable socket for a tracer tool )It which is driven by a grooved pulley k1 which in turn is driven by the belt k7 from the pulley k2. A similar socket 7c1 is provided about midway the arm in case it should be desired to attach a tracer at that point.

Cn the outer end of each of the brackets H, H, is journaled a socket 7c9 adapted to carry a cutting or carving tool les, said socket being driven by one of the belts 7a running from the respective pulleys k1 and around the pulleys kt. The tool sockets are of the usual construction in such machines and need not be particularly described.

Projecting at right angles from the lower part of the bed of the machine are two brackets B, B, which serve as supports for the work and pattern carrying elements to be described. Secured rigidly to the upper side of the brackets B, are two tranverse rails b1, b1, which are placed at the outer end and near the center of the brackets, respectively. The ends of the rails are bent to form stops b2. Slidably mounted on each of the rails b1, are two blocks C each of which is constructed and arranged (see Figs. 4 and 10) as follows The block in cross-section is in the shape of a channel-bar and is arranged with the flanges extending upwardly. Two'stud bolts are tapped into the under side of the block, on each of which is mounted a roller c1, said rollers being so arranged as to frictionally embrace opposite sides of the head of the rail b1. Bolted to the upper side of the block are plates c1, c4, and in the adj acent faces of the block and plate are cut registering longitudinal grooves which form a journal and race-way c3 for the spindles of the roller c2 the latter being so arranged and of such diameter as to have its face engage the upper face of the head of the rail b1.

There are four blocks C employed in our machine, which serve as carriers or trucks for two rails D, D, which are arranged transversely to the rails b1, and together with the front andrearrodSgDt, 1 D1, which GQ11116611 the ends o f said rails, form a frame which is adapted to slide VfromV right to left on the rails b1, 111. The rails D are of the same shape in cross-section as the rails b1 and have their ends turned up to formstops d2. Mounted on the rails D are four blocks D3 which are of the same construction and operation as the blocks C above described. Coupled to the carriers D3 are two side bars E, and front and rear bars E1, E1, the same being preferably made of tubes and to- A gether with said carriers, form a rectangular frame with a carrier at each of its four corners.

Bolted to each of the carriers D3 is a standard F, in the upper end of which is j ournaled the spindle of a hanger J which is adapted to swing freely in its bearings. To the lower ends of the four hangers J, is pivotally connected a frame composed of two side tubular bars G, G, and front and rear tubular bars G1, G1, suitably coupled together. Extending transversely of this frame, about midway between the front and rear bars, a middle bar G2 is coupled to the side bars G, and carries couplings M1 which permit of longitudinal adjustment on said bars G. Supported from the couplings h 1 are clamping screws ma which serve as adjustable supports for one end of the pattern, and the pieces being carved. The opposite end of said pattern and pieces is held by chucks m4 which are of the usual style and are suitably connected with the couplings M. Any other means of clamping the pattern and work pieces may be substituted for those shown.

From the aforegoing description, it will be apparent that the blocks D3 and their con- 105 nected bars and standards will slide freely backwards and forwards on the rails D, such movements being at right angles 'to the movements of the blocks C and connected rails D,

D1. It will also be plain that the frame 110 formed by thc coupled bars G, G1 and G2 will be swingingly supported on the standards F thus permitting the movement of the work pieces and the pattern in corresponding planes.

- Adjustably secured on the side bars E, E, are sleeves e1, e1, on each of which is secured by a stud bolt c6 a bracket e2 through which a slot e3 is formed. Arranged in the slot e3 is an upwardly curved flat metal spring e'4 in 120 the upper end of which is journaled a roller es the face of Vwhich is concave to adapt it to iit the bar G against the under side of which the roller bears. Set screws c5 extend through vertical threaded openings in the 125 upper portion of the brackets and when screwed down against the spring e4 hold it in its adjusted position, relative to the bracket. To adjust the bracket e2 on its bolt e so as to l bring the free end of the spring e4 with 130 greater or less tension against the bar G, we provide a set screw e7 which passes through a threaded opening in the bracket at one side of the aXis of the latter and has its lower end impinge against the sleeve e1, as clearly shown in Figs. 8 and 9. In practice the springs e4 will be so adjusted as to counterbalance in part the weight ofthe pattern and work pieces, and their supporting frame coinposed of the bars G, G1 and G2, so that but slight muscular effort will be required on the part of the operator in moving the work back and forth and up and down within the limits permitted by the rocking or swinging frame.

Having thus described our invention what we claim as new and desire to obtain by Letters Patent, is :v-

1. In a carving machine, a vertically arranged bed adapted to be secured to a wall, brackets rigidly secured to the bed and eX- tending at right angles therefrom, railsixed on said brackets, rails slidably mounted on and at right angles to said iiXed rails, a work and pattern carrying frame adjustably mounted on said slidable rails, a tracer and cutting tools and means for supporting and means for driving same. Y

2. In a carving machine, a vertically arranged bed adapted to be secured to a wall, brackets rigidly attached to and extending at right angles from said bed, rails arranged transversely of, and rigidly attached to, said brackets, carriers or trucks mounted on said rails and having roller bearings engaging said rails, other rails secured to said carriers slidable therewith, and arranged transversely of said iiXed rails, a frame slidably mounted on said slide rails, a frame swingingly supported on said slidable frame,

. means for supporting a pattern and work on said swinging frame, a tracer and cutting tools and means respectively for supporting and driving same.

3. In a carving machine, a vertical supporting b ed, a horizontal tool-carrying frame vertically adjustable on said bed, tool holders rotatably mounted on said frame, means for driving said holders, said means carried by said frame, a work-carrying frame arranged and suitably supported below said tool-carrying frame, and means whereby said workcarrying frame may be moved in straight and on curved lines.

4. In a carving machine, a vertical supporting bed, a horizontal tool-carrying frame vertically adjustable on said bed, tool holders rotatably mounted on said frame, means for driving said holders, work-carrying means arranged below said tool-carrying frame, and consisting of two slidable frames adapted to move on intersecting horizontal lines, and a frame swingingly supported on one end of said slidable frames.

5. In a carving machine, a vertical supporting bed, a horizontal tool-carrying frame vertically adjustable on said bed, tool holders rotatably mounted on said frame, means for driving said holders, said means carried by said frame, work-carrying means arranged below said tool-carrying frame and consisting of two slidable frames adapted to move in horizontal intersecting lines, and a Jframe swingingly and yieldingly supported on said frames.

6. In a carving machine, work and pattern carrying means consisting of two frames mounted to slide in intersecting horizontal lines, a swinging frame supported on one of the slidable frames, and work holding devices adjustably arranged on said swinging frame.

7. In a carving machine, work and pattern carrying means consisting of two frames mounted to slide in intersecting horizontal lines, a swinging frame supported on one of the slidable frames, work holding devices arranged on said swinging frame, and adjustable means for yieldingly supporting said swinging frame.

8. In a carving machine, a vertical supporting frame, rails iiXed on said frame, rails arranged transversely of and slidably mounted on said Jfixed rails, other rails arranged transversely o and slidably mounted on said last named rails, anti-frictional bearings for both sets of slidable rails, and a work and pattern supporting frame swingingly mounted on said supporting frame substantially in the manner set forth.

In testimony whereof we aflix our signatures in presence of two witnesses.

JOSEPH SCHMITT. CHARLES L. RUEHS.

Witnesses:

H. DE Los HIGMAN, F. BENJAMIN. 

